PLA-TiO2 nanocomposites: Thermal, morphological, structural, and humidity sensing properties
By Mallick, Shoaib; Ahmad, Zubair; Touati, Farid; Bhadra, Jolly; Shakoor, R. A.; Al-Thani, N. J.
Published in Ceramics International
2018
Abstract
In this paper, the effect of TiO2 ceramic nanoparticles on the thermal stability, morphology, molecular mass, structure and electrical properties of the polylactic acid-Titanium dioxide (PLA-TiO2) composites, aimed for relative humidity (RH) sensing have been reported. PLA-TiO2 nanocomposites films were developed through a spin coating process. The developed films were characterized by X-ray diffraction (XRD), Raman spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and electrochemical impedance spectroscopy analysis (EIS). To investigate the RH-dependent characteristics, the devices were prepared on pre-patterned ITO substrates. The capacitive and resistive response of the nanocomposite films were studied under RH levels ranging from 20
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